Spout for steel-furnaces.



G. .E. MIGHAELS. SPOUT FOR STEEL FURNACES. APPLICATION FILED 8EPT.1B,1913.

1 0 0 0'71; Patented Dec.2,1913

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U. E. MIUHAELS. SPOUT FOR STEEL FURNACES. APPLIOATION FILED SEPT. 1a, 1913.

Patented Dec. 2, 1913.

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CHARLES E. MIGHAELS, 0F WILSON, PENNSYLVANIA.

SPOU'I. FOR- STEEL-FURNACES.

' Specification of Letters Patent.

Patented Dec. 2, 1913.

Application filed September 18, 1913. Serial No. 790,492.

description of the invention, such as will enable others skilled in the art to which it appertalns to make and use the same.

This invention relates to furnaces, and

with the parts in their second position Fig. 3 is a similar view partly in section showing the parts in a third position. Fig. 4 is a plan view with the parts in the po sition illustrated in Fig. 1, and Fig. 5 is a longitudinal sectional view with the parts in the positionillustrated in Fig. 3. Figs. 6 and 7 are cross sections on the lines 66 and 77 respectively of Fig. 5.

In the drawings I have used the letter F to designate a furnace having an outlet opening 0 such as is usually closed by a plug P except when the molten metal is to be drawn. In carrying out my invention I employ a spout or trough 1 of suitable width, length, and materials, and it is supported by any suitable means in posltlon with its inlet end opposite said outlet opening 0 and its other end at a lower point where the molten metal is to be delivered. For detachably connecting the inner end of said trough with the furnace walk I preferably provide the trough on 1ts sides wlth V-shaped knuckles 2, and I provide the walls of the furnace with a pair of blocks 3 each having a V-shaped notch 4 in its upper edge so as to produce two spaced knuckles 5 coacting with the single knuckle 2 at each side of the trough and adapted to receive the same as best seen in Fig. 1; and through the alined knuckles may be passed pins 6 to hold the parts in rigid connection and yet to permit them to be separated when the This object is pins are withdrawn. The trough 1 has on each side a pair of lugs 7 7 and between them and at a lower point a single lug 8; and this trough is by preference internally lined with fire brick as indicated at 9.

Pivoted at the points 10 to each side of the trough are a pair of twin links 11 upstanding alongside the trough as seen in Fig. 5, and these are pivoted at their upper ends at the points 12 to ears 18 depending from rails or tracks 14 which latter have alongside them for a portion of their distance upright ratchet teeth 15 facing toward the furnace. The rear ends of the tracks are dropped or notched as shown at 16, beyond or in rear of which a cross bar 17 connects said rails as best seen in Fig. 4. The construction is such that the two rails 14 which, with the cross bar 17, constitute a track section, may be swung forward on the several links so that the links will rest on the lugs 7 of the trough 1 as seen in Figs. 1 and 4, or may be swung rearward so that the links 11 are carried over their lower pivots 10 a little beyond the vertical, as best seen in Figs. 3 and 5; and one of these links will at this time rest against the lug 8 which may itself be provided with a hook 18 engaging a pin 19 on this link to hold the parts in that position. The length of the links is such that at this time the entire track sect-ion is elevated considerably above the trough as indicated, whereas when the track section is swung forward its rails pass outside the sides of the trough, and whatever is carried by and between the rails or a little beneath them will stand within the trough as shown. Mounted on said track section is a carriage herein illustrated as consisting of four wheels 20 supporting a body or truck 21 of any suitable configuration, but by preference this truck carries arms or hangers 22 supporting small rollers or wheels 23 which travel beneath the rails 14 as best seen in Fig. 6 so that it is impossible for the carriage to become derailed. From said truck and preferably at the front end there of depends a tongue 24 by which 18 supported the plug P that closes the opening 0. This plug is preferably made of fire-brick,- cylindrical in shape as seen in Flg. 5, and I lay no claim to the plug or its material; but in order that it may be supported by the tongue 24 and at different distances from the same as the size of the opening 0 requires, I mount the plug on a stem of peculiar construction which is novel with me. That is to say, the plug P has a pin 25 projecting rearward from it and threaded at its rear end as shown at 26, and other pin-sections 27 may be provided which are threaded at both ends as shown, the rearmost screwing into a threaded opening 28 within the tongue; and all sections are connected by nuts as shown at 29. hen now it is desired to have the plug stand farther forward than is shown in Fig. 5, one or more of the sections are removed and replaced by a longer section or group of sections as will be clearly understood.

In addition to the swinging movement which the track section has with respect to the trough, it is contemplated that the carriage shall be moved forward and backward on the track section either by hand or by mechanical means not necessary to amplify. When moved to the rear the truck is held by means of a hook or possibly by two hooks 30 mounted in it near its'rear end and connected with each other, their bills 31 dropping into the notches 16 as best seen in Fig. 5, and when the truck is to be moved forward these bills must be moved out of said notches as will be clear. When the truck is moved forward its wheels travel on the rails 14 and its smaller safety wheels 23 under said rails, and in order to prevent it from rolling back down the track or rails I provide a pawl or perhaps two pawls 32 which engage the ratchet teeth 15 if the pawls are thrown into active position as seen in Fig. 1 or may be disengaged entirely therefrom if the pawls are turned over out of the way as seen in Fig. 2. If there are two pawls they will be connected with each other, the same as the two hooks 30 are connected with each other, by a rock shaft or bar running across the truck 21 in a manner not necessary to describe in detail, but such connection would permit the hooks or the pawls to be actuated by an operator standing at either side of the device.

The operation of this device is as follows: The trough having been put into position opposite the outlet opening 0 and connected with the furnace F by the means first above described, and its outer end being suitably supported in any proper manner, before the furnace is filled and the fire started the plug P is covered with fire clay and forced into the opening 0 so that the parts stand initially as seen in Figs. 1 and at. After the fire has been started and burning until the metal becomes molten, when it is desired to draw off some of the metal from the furnace the pawls 32 are disengaged from the ratchet teeth 15 and turned over to the position shown in Fig. 2 and then the entire carriage is run backward on the track section so that the plug P comes out the opening 0,

assisted as it is by the weight of the molten metal within the furnace; after which, and immediately following which action, the workman or workmen swing the links 11 on their lower pivots 10 so that the entire track section and the truck thereon are carried upward from the position shown in Fig. 2 to that shown in Fig. 3. This carries the plug and the lower end of the tongue 24 out of the trough 1 so that the latter is entirely free to permit the uninterrupted flow of the molten metal. Movement of the truck 21 back to the rear causes the hooks 30 to automatically engage the notches 16, and therefore the truck or carriage cannot now travel forward on the rails 14. As soon as the links were swung upward, the operator engaged the hooks 18 with the pin 19 -on either side or on both sides of the device, and therefore the track section cannot swing forward and downward, and it is impossible for the plug or the tongue to get into the path of the flowing metal unless these latches be manually disengaged. After drawing'ofi the molten metal from the furnace several times it is possible that the opening 0 may become enlarged or its walls roughened, and in that case the conical plug P would have to be moved farther inward. This is effected bylengthening its stem in the manner above suggested, or in any equivalent manner, after which the plug is e restored to the opening in the manner above described.

I do not wish to be limited to details nor to the materials and proportions of parts.

lVhat is claimed as new is:

1. The combination with a furnace having an outlet, and a trough leading from said outlet; of twin links pivoted at their lower ends to the sides of said trough, a track section pivotally connected to their upper ends and adapted to be raised above the trough when the links are swung to the rear, a carriage movably mounted on said track section, and a plug carried by the carriage.

2. The combination with a furnace having an outlet, and a trough leading from said outlet; of twin links pivoted at their lower ends to the sides of said trough, a track section pivotally connected to their upper ends and adapted to be raised above the trough when the links are swung to the rear, a truck movably mounted on said track section and having a tongue depending from it between said tracks, a plug forward of said tongue, and a sectional stem connecting the tongue and plug.

3. The combination with a furnace having an outlet, and a trough leading from said outlet; of twin links pivoted at their lower ends to the sides of said trough, a track section pivotally connected to their upper ends and adapted to be raised above the trough when the links are swung to the rear, a truck movably mounted on said track section and having a tongue depending from it between said tracks, a plug forward of said tongue, a pin projecting from the rear end of the plug and threaded, pin-sections threaded at both ends and the rearmost thereof engaging said tongue, and nuts connecting the meeting ends of said sections.

4. The combination with a furnace having an outlet, and a trough leading from said outlet; of twin links pivoted at their lower ends to the sides of said trough, a track section carried by the upper ends of said links and having notches near the rear extremities of its rails and a cross bar connecting the rear ends of said rails, a carriage having wheels traveling on said rails, hooks pivotally mounted in the rear end of the carriage and adapted to drop into said notches when the carriage is moved to the rear, and a plug carried by said carriage.

5. The combination with a furnace having an outlet opening, a trough whose inlet end communicates with said opening and whose outer end is depressed, and a pair of lugs projecting outwardly from each side of the trough; of a pair of links pivotally connected at their lower ends to each side of the trough, a track section having depending ears under each rail pivotally connected to the upper ends of said links, the rails resting on said lugs when the links are thrown forward, a carriage mounted on said track section, and a plug carried by the carriage.

6. The combination with a furnace having an outlet opening, a trough whose inlet end communicates with said opening and whose outer end is depressed, a pair of lugs projecting outwardly from each side of the trough, and a single lug projecting outwardly from each side of the trough between the other two; of a pair of links pivotally connected at their lower ends to each side of the trough, a track section comprising two rails pivotally connected with the upper ends of said links and rigidly connected with each other across their rear extremities, the rails lying on said pairs of lugs when the track section is pushed forward and the links lying against said single lugs when the track section is raised and pushed rearward, a carriage movably mounted on said rails, and a plug carried by the carriage.

7. The combination with a furnace having an outlet opening, an inclined trough leading from the latter, a swinging support pivotally connected at its lower end with the trough, and a track section consisting of two rails rigidly connected with each other and pivotally connected with the upper end of said support; of a carriage comprising a truck whose wheels travel on said rails, hangers on the truck passing outside said rails, small wheels carried on said hangers beneath the rails, a tongue depending from said truck, and a plug carried by said tongue.

8. The combination with a furnace having an outlet opening, an inclined trough leading from the latter, a swinging support pivotally mounted at its lower end, and a track section carried by said support and consisting of two rails rigidly connected with each other at their rear ends and each rail'having ratchet teeth upstanding along its inner edge; of a carriage consisting of wheels movably mounted on said rails and a truck carried thereby, a plug carried by the truck between the rails, andpawls pivotally mounted on the truck and adapted to be thrown into engagement with said ratchet teeth, for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES E. MIOHAELS.

Witnesses:

CLYDE L. PATTERSON, WM. PATTERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

